Issued Patents All Time
Showing 76–94 of 94 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6751656 | Apparatus and method for providing information about two-way computer communication services | Youji Kohda, Kenichi Sasaki, Ryuichi Matsukura, Yasuhide Matsumoto, Iwao Otsuka +3 more | 2004-06-15 |
| 6742116 | Security method, security software and security system for electronic communications | Tatsuro Matsumoto | 2004-05-25 |
| 6738807 | Virtual space communication system for executing communication among computers sharing a virtual space | Takashi Ohno, Akinori Iwakawa, Naohisa Kawaguchi | 2004-05-18 |
| 6735615 | Status change notification system for use in chat system channel | Noboru Iwayama, Kenichi Sasaki, Tatsuro Matsumoto, Hitoshi Yamauchi, Hidenobu Ito | 2004-05-11 |
| 6714965 | Group contacting system, and recording medium for storing computer instructions for executing operations of the contact system | Jun Kakuta, Hiroyasu Sugano | 2004-03-30 |
| 6711264 | Security improvement method and security system | Tatsuro Matsumoto | 2004-03-23 |
| 6564244 | System for chat network search notifying user of changed-status chat network meeting user-tailored input predetermined parameters relating to search preferences | Hidenobu Ito, Tatsuro Matsumoto, Hitoshi Yamauchi, Noboru Iwayama, Kenichi Sasaki | 2003-05-13 |
| 6437778 | Virtual space communication system, three-dimensional image display method, and apparatus therefor | Naohisa Kawaguchi, Takashi Ohno, Akinori Iwakawa, Hiroaki Harada | 2002-08-20 |
| 6401122 | Communication management apparatus | Takashi Ohno, Akinori Iwakawa, Naohisa Kawaguchi | 2002-06-04 |
| 6249806 | Apparatus and method for providing information about two-way computer communication services | Youji Kohda, Kenichi Sasaki, Ryuichi Matsukura, Yasuhide Matsumoto, Iwao Otsuka +3 more | 2001-06-19 |
| 6225997 | Communication system and communication apparatus | Madoka Mitsuoka, Hiroyasu Sugano | 2001-05-01 |
| 6205478 | System for exchanging user information among users | Hiroyasu Sugano, Jun Kakuta | 2001-03-20 |
| 6154782 | Server switching between communication modes for clients coupled to the server | Naohisa Kawaguchi, Takashi Ohno, Akinori Iwakawa | 2000-11-28 |
| 6009460 | Virtual reality space sharing system having self modifying avatars (symbols) in accordance to a category that the symbol belongs | Takashi Ohno, Akinori Iwakawa, Naohisa Kawaguchi | 1999-12-28 |
| 5956028 | Virtual space communication system, three-dimensional image display method, and apparatus therefor | Naohisa Kawaguchi, Takashi Ohno, Akinori Iwakawa, Hiroaki Harada | 1999-09-21 |
| 5930752 | Audio interactive system | Naohisa Kawaguchi, Takashi Ohno, Akinori Iwakawa, Hiroaki Harada | 1999-07-27 |
| 5894307 | Communications apparatus which provides a view of oneself in a virtual space | Takashi Ohno, Akinori Iwakawa, Naohisa Kawaguchi | 1999-04-13 |
| 5742294 | Method and apparatus for synthesizing images | Masaki Watanabe, Naohisa Kawaguchi, Shuichi Shiitani | 1998-04-21 |
| 5657432 | Texture mapping method for placing texture pieces successively on object | — | 1997-08-12 |